body {
    font-family: 'Microsoft YaHei', sans-serif;
    background-color: #f5f7fa;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
}

.input-area {
    margin-bottom: 30px;
}

textarea {
    width: 100%;
    min-height: 150px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    margin-bottom: 15px;
    resize: vertical;
}

.settings {
    margin-bottom: 15px;
}

button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s;
}

button:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

button:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
}

.progress-container {
    margin: 20px 0;
}

progress {
    width: 100%;
    height: 10px;
    border-radius: 5px;
}

.stats {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    margin: 20px 0;
}

.success {
    color: #27ae60;
    font-weight: bold;
}

.error {
    color: #e74c3c;
    font-weight: bold;
}

.download-btn {
    background-color: #2ecc71;
    display: block;
    width: 100%;
    text-align: center;
}

.download-btn:hover {
    background-color: #27ae60;
}